Home / 75,116.72-103,660.20-41,124.80

Finding the Fourth Proportional to 75,116.72, 103,660.20 and 41,124.80

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Solution

The fourth proportional to 75,116.72, 103,660.20 and 41,124.80 is: 56,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,116.72 : 103,660.20 = 41,124.80 : x
  2. Step 2: Convert to fraction form
    75,116.72/103,660.20 = 41,124.80/x
  3. Step 3: Cross multiply
    75,116.72x = 103,660.20 × 41,124.80
  4. Step 4: Simplify right side
    75,116.72x = 4,263,004,992.96
  5. Step 5: Solve for x
    x = 4,263,004,992.96/75,116.72
  6. Step 6: Final answer
    x = 56,751.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.